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SSC JE EE : Technical Quiz 6

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Question 1

What is power angle equation of synchronous machines?

Question 2

Which of the following requirement about the type of material used in transformer core?

Question 3

The disadvantages of Scherbius System used for Speed controlling in three-phase Induction motor is

Question 4

Calculate the power transformed by inductive action for a 10 kVA, 1.2 kV/120 V, 50 Hz step down autotransformer?

Question 5

Which of the following is the n-type doping element?

Question 6

Below there are some characteristic given for a machine. For which machine we obtain the following characteristic?

Question 7

A______ of a system is a pictorial representation of the function performed by each component and of the flow of signals.

Question 8

A 1200-watt lamp has a mean spherical candle power (MSCP) of 1600 watt, is suspended over the working floor. Then calculate the Lamp Efficiency.

Question 9

Maximum value of torque which a synchronous motor can develop at rated voltage and frequency without losing synchronism is defined as?

Question 10

If Induction Motor is directly switched-On, then it will develop

Question 11

Which of the following type of motors has the armature placed in rotor and the field winding replaced by permanent magnet poles fixed due to the stator to produce the required magnetic field?

Question 12

Which one of the following relays has the capability of anticipating the possible major fault in a transformer?

Question 13

Dielectric loss is proportional to

Question 14

In a two-wattmeter method, at a power factor angle of 60o lagging, what will be the reading of both the wattmeter respectively

Question 15

Which one of the following is the correct statement for the synchronizing Power coefficient?

Question 16

Moving iron meters can be used to measure

Question 17

In a single-phase Induction Machine, if Pcr is the total rotor copper loss, Pgf & Pgb loss component of power in forward & backward field, and forward slip is s, then which relation is correct for the total rotor copper loss?

Question 18

Utilization factor is defined as the ratio of

Question 19

If there is no delay for backup protection when the primary protection is failed, it is a kind of protection scheme named as?

Question 20

Which one of the following statement is INCORRECT regarding flat demand rate tariff?
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